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Phone Prefix Finder
Identify the telecom carrier that supplies service to a phone customer, and their location.  Enter the 6-digit Area Code and Prefix (NPA-NXX) of the phone number on these sites and find the carrier and location. A few areas have numbers assigned to different carriers based on the 7th digit. Some numbers no longer conform to these records after having been "ported" through Local Number Portability. Old cellular company names are shown as that is how they are still listed in the administrator's records.

Also get a report on how to handle your wireless and wireline numbers including some helpful number hacks in our Number Management Section.


Telco Data
TELCO DATA
A frequently-updated and easy-to-use site. Enter your Area Code and Prefix and get a result of the name and location of the wireless and wireline carrier that was originally assigned that Prefix.


Free Carrier Lookup
FREE CARRIER LOOKUP
This site gives you the most accurate results for the carrier name, and adjusts for known Number Portability changes. You may not get location information.


NANPA
NANPA
The official Area Code & Prefix-assigning organization, the North American Numbering Plan Administration. Choose a state and you get all Prefixes for that state and Area Code, wireless and wireline. The results are large files. Locations are shown in a code that you may or may not be able to figure out.


Local Calling Guide
LOCAL CALLING GUIDE
A database that provides a cross-reference among switches and local calling areas which can be tailored with a small or great amount of detail. Use this site to find what exchanges are 'Local' to a particular cell phone number. It also refers back to the NANPA database.

Fone Finder
FONE FINDER
Enter the first 6 or 7 digits to get a result. The site includes Canadian and other international numbers.


Google Numbers
GOOGLE NUMBER SEARCH
If you enter the full 10-digit phone number into a Google or other search, you may be surprised at the results. This is a fairly common way to track down suspicious callers who sound legitimate but aren't. Be aware that your search results could return a number that belongs to a real person or business who did not call you, but the caller ID was fooled to make it appear that they did.


Manage Phone Numbers
YOUR OWN PHONE NUMBER
If it's your own phone number that needs work, we have a whole page of ideas to manipulate your number to make it look like you want, ring where you want, keep it out of troublesome hands, and have it live with the right carrier.



▶ What is NPA-NXX?
North American phone numbers are in the format (where N is any digit from 2 through 9, and X from 0-9):

NPA-NXX-XXXX
(Example:  213-867-5309)
  • NPA identifies the 3-digit Area Code (Numbering Plan Area)

  • NXX identifies the Exchange or 'Prefix' (Central Office) within the NPA

  • XXXX identifies the individual subscriber number within the NXX

Managing Wireless Phone Numbers
Changing, moving, saving, or tracking down wireless phone numbers.  A number can be as important as your name, or a secret that you want to keep private.

Numbers to Program (and NOT Program) in to Your Wireless Phone:
▶ Add an entry in your phone book, "ICE" (In Case of Emergency) and a relative's phone number. In case of an accident, it gives you a better chance of your being identified and relatives notified.
Add the Local direct number to certain Public Safety agencies, like *CSP, #77 and the like. A 911 operator needs to determine the nature of your call, but a direct call to the right agency will expedite your request.
 Make sure you enter a number for "HOME", even if you never call home. It's the most-often used way for someone who finds a lost cell phone to return it to the owner.
 If you belong to AAA or other auto club, be sure to save their number in your phone book. Your auto manufacturer and insurance company may offer help as well.
 Add your power company and land line repair service to the list. A phone directory may not be available when the power is off or the cable is dead.
 Do NOT add "911" to your speed dial list. This alone accounts for a huge number of accidental calls to 911 operators.
 Get a List of Important Numbers to have before you roam outside the country.
 Do these things now...before you need them!

Move Your Number from One Carrier to Another:
You can move, or "port", your phone number from wireless or wireline carrier to another. Not only can you keep your wireless number when you change carriers, you can also perform a few of tricks by "porting" your number which can enable you to make a lot more changes that you were previously told were not possible.  Our Guide to Moving Your Number is a must-read before you start the process.  You can really mess it up if you make changes in the wrong order.

Add a "+1" to the Entries in Your Phone Book
If you ever travel outside the US, adding a "+1" (without the quotation marks!) allows you to use your phone book both in and outside the US.  The "+" tells the phone to automatically add the foreign access string, if any, and the "1" is the country code for all numbers in the US and North America. You don't really need to add it today except for your most important numbers, just get into the habit with all new numbers.     

Get a Phone Number in the Exchange or Area Code You Want
Your wireless carrier may not be able to provide a phone number in your choice of Area Codes. It's important to some people. With "Number Portability" you can fix that, although it's not free. Contact your local wireline phone company and order a real phone line (or wireless from a cellular carrier that does offer service in your desired Area Code, but watch out for Early Termination Fees). You can "install" the wireline in a home or business, some phone companies will assign you a "virtual" phone number that rings another. You may not have many choices of numbers. Then, contact your cellular provider to "port" your number from wireline (or wireless) to your final wireless account. The final wireless carrier will help you through that. This action will cancel the old service for you. Don't do it yourself, but check with the carrier later to make sure it terminated properly.

Of, course, you could keep the new wireline active and just Call Forward that number to your cell phone. This can be done with both actual and virtual phone numbers. You may need to pay for a certain amount of service, installation charges, and go through the headache of choosing a long distance carrier, but how bad you you want it?

"Hide" Your Phone Number:
The easiest way to hide your phone number is to use Call Forwarding from another number such as Google Voice.  Be careful about what number shows on outgoing calls.  Google Voice can be configured to show either your actual or Google Voice number on outgoing calls, however, this does NOT apply to outgoing Text Messages.  If you really need to block your phone number you can enter a program code (such as *67) to hide your Caller ID.  Most carriers can also permanently block your outgoing Caller ID.

Google Voice Gives You Control of All the Numbers for All Your Phones:
Google can assign a Free phone number that is tied to you, not to a device or a location. Make and receive calls, send and get texts, and read and listen to voice mails on your phone, tablet, or computer.  You can choose a random number, one that is meaningful to you, or you can transfer your existing number. 
Subscribe to Google Voice and get flexible Number Portability and a full slate of phone features all fully programmable.  You can choose what number rings what phone at what time, cheap international wireless calls, and voice mail that responds to each caller in the way you choose.

Cutting the Cord but Saving the Home Phone Number:
If you plan to dump your landline, there are several ways to preserve the number whether you want to use it or just hold on to it. Some solutions are Free and others are really cheap.

Get a More "Businesslike" Number for Your Cellular Phone:
When you place an ad online, in the newspaper, on your business card or the back of your truck, customers often know that's a cell phone number, making your business look a little less 'legitimate.' With "Number Portability" you can fix that, although it's not free.

Contact your local wireline phone company and order a real phone line. You can "install" it wherever you'd like, some phone companies will assign you a "virtual" phone number that rings another. You won't have many choices of a number, but choose one with an "old" exchange people would recognize, or one that you recognize as "businesslike". Then, contact your cellular provider to "port" your number from wireline to wireless. You may need to establish a new wireless account, but the wireless carrier will help you through that. This action will cancel the wireline for you. Don't do it yourself, but check with the wireline later to make sure it terminated properly. There are more tips for number portability here. Of, course, you could keep the new wireline number and just forward the number to your cell phone. This can be done with both actual and virtual phone numbers. Some carriers offer "vanity" phone numbers that spell something, at an additional charge.

You may need to pay for a certain amount of wireline service, installation charges, and go through the headache choosing a long distance carrier, but in the end, you'll look like you're in business at an 'established' location
.

You Can Make Calls Without an Assigned Phone Number
There are a handful of apps that make calls through an IP (Internet Protocol) connection to the public phone network and that includes connections made through the broadband portion of your wireless phone.  Some apps also allow incoming calls however, only through the app and not through the public telephone network.

Change Your Phone Number:
You can get away from pesky callers or maintain your privacy by changing your actual wireless phone number from time to time. You can use one of the above methods to change the number others can see, or you can contact your carrier and just ask for a number change.  Most carriers permit a free number change once every 6 months.  They will also change or make private numbers that have fallen into dangerous hands, without charge.

Be careful! You could easily trade your old number for one previously owned by a shady character. You could get a whole new batch of annoying calls...or make some new friends!

Vanity Phone Numbers:
You can get a custom phone number. These are often offered by landline carriers and you can get a phone number that is relevant to your life, like your address, or a number that spells a name or a word on a phone keypad. These numbers are charged extra but can be utilized in different locations with virtual number assignments or with other manipulations mentioned above. There may be restrictions if you want to "port" your number from landline to wireless.

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